O neil home comfort co



vto break the siphonic action.

HERMAN O. STIFEII, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE STIFEL- ONEILHOME COMFORT CO., OF SAME PLACE.

wATER-oLosET.

SPECIFICATION forming part of Letters Patent No.v 516,129, dated March6, 1894.

Application iiled March 17, 1893. Serial No. 466,482. (No model.)

To all whom t may concern:

Be it known that I, HERMAN C. STIFEL, of the city of St. Louis, in theState of Missouri, have invented a certain new and useful Improvement inWater-Closets, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification.

My invention relates to an improvement in water closets of the si phonictype; and my invention consists in features of novelty hereinafter fullydescribed and pointed out in the claims.

Figure I is a vertical section, illustrative of my invention. part insection, and part in elevation. Fig. III is a detail elevation of thebowl, and the discharge and air pipes.

Referring to the drawings,1 represents the bowl, having a lower trap 2.

3 represents a water tank, within which is located a siphon 4, having adischarge valve 5, operated by a lever and chains 6, as usual.

7 is the supply pipe having the usual valve and a float 8.

9 is the discharge pipe connecting the tank 3 through means of thesiphon 4 to the bowl 1.

10 represents the vent pipe controlled by a valve 11, a pivoted lever 12and a float 13. The pipe l0 has a bell mouth 14.

15 is an air pipe connecting the chamber 16 of the bowl with the Siphon4, through means of the pipe 10, and a port 17.

The operation is as followsz-When the bowl is to be iiushed, the siphonis started by opening the valve 5, which is allowed to closeimmediately. The passage of 4the water through the Siphon 4 and pipe 9,around the pipe 10, creates an upward current of air through the pipe15, and port 17, to rarefy the air, and to start the siphon in thechamber 16. The water continues to pass from the tank to the bowl untilthe float 13 descends and raises the valve 11, opening the pipe 10 tothe air. A portion of this air passes through the port 17, and pipe 15into the chamber 16,

The air entering through the pipe 10 also breaks the siphon 4, and thewater contained in the pipe 9 after the siphon is broken, forms theafterilush to till the traps and the bowl.

Fig. II represents the bowl,

By locating the pipe 10 so that its outer end, into which the air enterswhen the water in the tank becomes nearly exhausted, is beneath thenormal level of the water, that is to say, beneath the surface of thewater when the tank is full, the Water in the-tank serves as a seal toprevent any gases escaping from the pipe 10 into the room,so that thevalve 12 is not alone relied upon to prevent gases passing from the pipe10, which has direct communication with the chamber 16 of the bowl, intothe room.

I prefer to form a perforation 18 in the pipe 10, to permit a freeescape for the airinto the siphon 4, when the valve 11 is open.

It will be observed that in this construction, there is no directcommunication between the pipe 15 and the room in which the closet islocated,unti1 the valve 11 is opened, and then the current of air is ina down direction, so that with my improved construction, there is noescape of foul air from the pipe 15 except through the water tank, whereit might escape into the room,

I do not wish to be limited to the exact construction of the pipe 10 andvalve 11, with its float, as other means may be employed as a vent tobreak the siphon.

I claim as my invention- 1. The combination of a bowl, a tank, a siphonlocated in the tank, a valve for said siphon, a discharge pipeconnecting the tank to the bowl through said siphon, a pipe 1010- catedwithin the siphon, and projecting therefrom into the tank beneath saidSiphon valve, an air vent to said pipe 10 outside of said siphon andbelow the normal water level, an air pipe communicating with the chamberbetween the traps of the bowl, and a port or passage 17 forming acommunication between said air pipe and said pipe 10; substantially asand for the purpose set forth.

2. In a water closet, the combination of a bowl, a tank, a Siphonlocated in the tank, a valve for said siphon, a discharge pipeconnecting the tank to the bowl, an air pipe communicating with thechamber between the traps of the bowl, a port or passage 17 with whichsaid air pipe communicates, a pipe 10 having a perforation 18, andlocated beneath the valve of the siphon and extending into IOO the tank,and a vent for said pipe lO outside of said siphon; substantially as andfoi1 the purpose set forth.

3. In a water closet, the combination of a bowl, a tank, a Siphonlocated in the tank, a valve for said siphon, a discharge pipeconmeeting the tank to the bowl, an aiil pipe communicating with lthechamber between the traps of the bowl, a port or passage 17, with rowhich said air pipe communicates, a pipe 10 having a perforation 18 andlocated beneath the valve of the Siphon, and extending into the tank,and a Valve and loat controlling said pipe 10; substantially as and forthe pui'- pose set forth.

HERMAN C. STIFEL.

In presence of- E. S. KNIGHT, BENJN. A. KNIGHT.

